/Engine/Plugins/Runtime/RigVM/Source/RigVMDeveloper/Public/RigVMModel/RigVMNode.h
Joins a NodePath from to segments, so for example "CollapseNodeA" and "CollapseNodeB|CollapseNodeC" becomes "CollapseNodeA|CollapseNodeB|CollapseNodeC".
static [FString](API\Runtime\Core\Containers\FString) JoinNodePath ( const [FString](API\Runtime\Core\Containers\FString) & Left, const [FString](API\Runtime\Core\Containers\FString) & Right )